Nissan Repair Questions? Ask a Mechanic for Answers ASAP
Hello my name is ***** ***** thank you for your question.
The knock sensor will not cause this. Do you have any other codes?
Well, the knock sensor will not cause a Service Engine Soon light. Normally you find the knock sensor code when another code is generated.
What brand spark plugs did you install?
Sure.. Take your time and let me know.
That is the first thing you need to start with. These engines don't like any brand spark plugs but NGK's. So put some NGK spark plugs in and lets see how it runs.
Maf sensor can certainly cause the truck to run poorly as well. But these cars don't like after market electrical parts. So you may want to just get the MAF sensor from the dealer and change the plugs. That should make it run much better if not correct it.
Let me know how you make out.
Knock sensor won't cause any running issues. I would not worry about that unless you are due for inspection. The Knock sensor won't even turn on the Service Engine Soon light. You normally find that code when something else turns the light on, like the MAF sensor code.
The MAF sensor meters the air going into the engine. So if that is not working right, it can certainly feel like a fuel issue cause it's not metering the air properly.
You have a code for it, so you need to start with that. Plus the spark plugs.
Your welcome, Talk to you in a few days.
I was suggesting to try cleaning the MAF sensor to see if it's simply that. If your still having issues, then the MAF sensor would need to be checked with a scanner to verify my thoughts. A Maf sensor is around 300 bucks for your truck. I don't think you would need to sell it over a 300 dollar part.
Do you have any more questions on this?